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Phylogenetic relationship of two Mola sunfishes (Tetraodontiformes: Molidae) occurring around the coast of Japan, with notes on their geographical distribution and morphological characteristics
Three independent groups, including groups A and B, were found, each with a wide geographical distribution, which suggests the presence of at least three independent species within the genus Mola.
Alternative spawning tactics of female angelfish according to two different contexts of sex change
- Y. Sakai
- Environmental Science
- 1 July 1997
Social conditions for sex change and reproductive success were studied in the haremic marine angelfish in the coral reefs of southern Japan, where the largest female in a harem changed sex not only after disappearance of the dominant male but also occasionally in his presence.
Reversed sex-change in the protogynous reef fish Labroides dimidiatus
The sex of L. dimidiatus is strictly determined by social status whenever it changes after mate loss, and the first report of reversed sex-change among protogynous wrasses is reported.
Harem structure of the protogynous angelfish, Centropyge ferrugatus (Pomacanthidae)
Social structure of the protogynous angelfish, Centropyge ferrugatus, was examined on the coral reefs of Sesoko Island, Okinawa, Japan, and suggests that the two harem structures may occur broadly in prot misogynous haremic fishes.
Female-female Spawning and Sex Change in a Haremic Coral-reef Fish, Labroides dimidiatus
In the polygynous coral-reef fish, Labroides dimidiatus, the largest female may complete sex change within a few weeks if the male disappears, suggesting that the largest females should perform male sexual behavior to secure future mates, even before completion of gonadal sex change.
Terrestrial reproduction by the air‐breathing fish Andamia tetradactyla (Pisces; Blenniidae) on supralittoral reefs
Reproductive behaviours of the rockhopper blenny Andamia tetradactyla were studied on supralittoral reefs of Kuchierabu-jima Island, southern Japan, and it was found that nests maintained higher humidity than outside.
Sexually Dichromatic Protogynous Angelfish Centropyge ferrugata (Pomacanthidae) Males Can Change Back to Females
The sex of C. ferrugata, including secondary developed sexually dichromatic characteristics, can be completely reversible in accord with their social status, according to individual social status.
Predation risk and the opportunity for female mate choice in a coral reef fish
- K. Karino, T. Kuwamura, Y. Nakashima, Y. Sakai
- Environmental ScienceJournal of Ethology
- 15 November 2000
It is suggested that females under higher predation risk had less opportunity to choose preferable mates and that they had to mate with the same, nearest males in most cases.
Hermaphroditism in fishes: an annotated list of species, phylogeny, and mating system
An annotated list of hermaphroditic fish species is presented from a comprehensive review and careful re-examination of all primary literature and supported the size-advantage model that predicts the evolution of sequential hermphroditism.
Redescription of the bump-head sunfish Mola alexandrini (Ranzani 1839), senior synonym of Mola ramsayi (Giglioli 1883), with designation of a neotype for Mola mola (Linnaeus 1758) (Tetraodontiformes:…
Mola alexandrini can be distinguished from other species of Mola by the following combination of characters in adults: head profile with bump; chin with bumps; body scales rectangular; clavus rounded, supported by 14–24 (mode 17) clavUS fin rays and 8–15 (12) ossicles on the rear margin.